Vacuum packing bag

ABSTRACT

A vacuum packing bag having a bag body ( 3 ), a reopenable seal and a vacuum valve ( 4 ) provided on the bag body. The bag body is formed by at least one front bag piece ( 1 ) and one back bag piece ( 2 ), and a fork-like opening ( 8 ) is formed at the top of the joint between the front bag piece and the back bag piece. A cover piece ( 5 ) is connected with the fork-like opening and has connection edges ( 52 ) and at least one movable edge ( 51 ). The connection edges are joined with corresponding edges of the front bag piece and the back bag piece at the fork-like opening, and the movable edge is joined with the upper edge of the front bag piece at the fork-like opening to form an opening ( 6 ) of the packing bag and constitute a movable seal. The vacuum packing bag has a simple design, an opening that can be sealed more quickly and conveniently for a labor-saving operation.

FILED OF THE INVENTION

The present invention relates to a vacuum packing bag. In particular, itrelates to a vacuum packing bag with an opening that can be opened andclosed in a quick, convenient and less elaborated manner.

BACKGROUND OF THE INVENTION

Vacuum bags are commonly used to store daily necessities, such asclothes, to achieve damp-proof, dustproof, insect control, space-savingpurposes, etc., which makes our life easier.

The existing vacuum bags are usually made of soft materials, such as PVCfilm or nylon composite film, and a sealing means and a vacuum valveprovided on the bag body. With the ever-increasing demand for moreconvenience in daily life, the existing vacuum bags can no long meetsuch demand because their operation is not very convenient. For example,when bulky articles are placed in traditional vacuum bags, the bags arelikely to be puffed up due to the bulkiness of the articles, making itcumbersome to seal the opening, and it may take two persons for theoperation, one for holding and narrowing the opening and the other foreffecting the sealing.

The present invention makes improvement with respect to the abovementioned deficiency.

SUMMARY OF THE INVENTION

It is an object of the present invention to overcome the deficiency ofthe prior art and provide a vacuum packing bag with a proper structure,convenient operation and an opening which can be sealed in alabor-saving and convenient manner.

The technical features to solve the existing problem are reflected inthe following described packing bags of the present invention:

A vacuum packing bag, comprising a bag body, a re-openable sealing and avacuum valve provided on the bag body, characterized in that the bagbody is formed by at least one front bag piece and one back bag piece,and a fork-like opening is formed at the top of the front bag piece andthe back bag piece where they are not joined; a cover piece covering thefork-like opening and provided with connection edges and at least onere-openable edge; the connection edges of the cover piece are joinedwith corresponding edges of the front bag piece and the back bag pieceat the fork-like opening; and the re-openable edge is in connection withthe upper edge of the front bag piece at the fork-like opening to forman opening of the packing bag and constitute the re-openable seal of thebag body.

A vacuum packing bag as described above, characterized in that there-openable seal of the bag body is a ziplock device arranged on theopening of the packing bag.

The bag body of the present invention may be formed by heat sealing ofthe edges in the lower portions of the front bag piece and the back bagpiece such that the front bag piece and the back bag piece form a bagbody, a vacuum valve is provided on the bag body, and a fork-likeopening is formed at the upper portion of the front bag piece and theback bag piece where they are not joined by heat sealing.

A vacuum packing bag as described above, characterized in that thefork-like opening is Y-shaped.

A vacuum packing bag as described above, characterized in that theziplock device is composed of a groove provided on the cover piece and aridge provided on the edge of the front bag piece which may be insertedinto the groove, and the ridge is engaged in the groove to accomplishsealing of the opening. The positions of the groove and the ridge areexchangeable, i.e. the ridge may be provided on the cover piece and thegroove, on the front bag piece, and the function of the movable seal isthe same as under the aforesaid circumstance.

A vacuum packing bag as described above, characterized in that the bagbody is placed in a box.

A vacuum packing bag as described above, characterized in that aconnection piece is provided between the lower edges of the front bagpiece and the back bag piece.

A vacuum packing bag as described above, characterized in that thematerial of the bag body is plastic.

The present invention has the following advantages over the prior art:because a cover piece is provided at the top of the bag body, an openingis formed between the cover piece and the upper edge of the front bagpiece and the opening is away from the middle. Thus, the bag body willnot be subject to such a puffing up tension after a quilt is placed intoit, which would make the opening difficult to close, and the sealing ofthe opening is thus made easier and more labor-saving. Furthermore, theopening of the bag body can be configured according to the size of thequilt. The vacuum bag may also be used in combination with a box, suchas a non-woven fabric box so as to protect the vacuum bag and prolongits service life.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 depicts a three-dimensional view of an embodiment of the presentinvention;

FIG. 2 depicts a diagram of an embodiment of the present invention inuse;

FIG. 3 depicts an A-A cross-sectional view of FIG. 1 of the presentinvention;

FIG. 4 depicts a three-dimensional view of another embodiment of thepresent invention;

FIG. 5 depicts a diagram of another embodiment of the present inventionin use;

FIG. 6 depicts a B-B cross-sectional view of FIG. 4 of the presentinvention;

FIG. 7 depicts an exploded view of an embodiment of the presentinvention;

FIG. 8 depicts an exploded view of another embodiment of the presentinvention;

FIG. 9 depicts a diagram of a bag of the present invention used incombination with a box.

DETAILED DESCRIPTION OF PARTICULAR EMBODIMENTS OF THE INVENTION

The present invention is further described with reference to the figuresand the detailed embodiments:

As shown in FIGS. 1 through 5, a vacuum packing bag comprises a bag body3, a re-openable seal means, and a vacuum valve 4 provided on the bagbody, wherein the bag body 3 comprises a front bag piece 1 and a backbag piece 2. The front bag piece 1 and the back bag piece 2 are heatsealed at lower edges thereof such that the front bag piece 1 and theback bag piece 2 form a bag body 3, and a vacuum valve 4 is provided onthe bag body 3. In other words, the front bag piece 1 and the back bagpiece 2 are heat sealed at the bottom edges and the lower portion of theside edges to form a bag body 3, which has a pointed bottom as shown inFIGS. 1, 2 and 3. Generally, the material of the bag body 3 is plastic.Of course, an extra connection piece 10 may be added as necessarybetween the bottom edges of the front bag piece 1 and the back bag piece2 so that the bottom of the bag body 3 becomes flat, as shown in FIGS.4, 5 and 6.

At the top, the front bag piece 1 and the back bag piece 2 are notjoined by heat seal, leaving a fork-like (or Y-shaped) opening 8, asshown in FIGS. 1 and 7. A cover piece 5 is provided, which covers thefork-like opening 8. The cover piece 5 comprises a number of connectionedges 52 and a re-openable edge 51. The connection edges 52 of the coverpiece 5 are heat sealed with corresponding edges of the front bag piece1 and the back bag piece 2 at the fork-like opening 8.

The re-openable edge 51 of the cover piece 5 and the upper edge of thefront bag piece 1 at the fork-like opening 8 form an opening 6 of thepacking bag, and a ziplock device 7 is provided on the opening 6 of thepacking bag for opening and closing opening 6 of the packing bag. Theziplock device 7 is composed of a groove 72 provided on the cover piece5 and a ridge 71 provided on the upper edge of the front bag piece 1which can be inserted into the groove 72, and the ridge 71 is engaged inthe groove 72 to accomplish sealing. Specifically, the groove 72 isprovided on the movable edge 51 of the cover piece 5, and the ridge 71is provided on the upper edge of the front bag piece 1, as shown inFIGS. 3 and 6.

As shown in FIG. 9, the vacuum bag as described above may also be usedin combination with a hard box 9.

Since a cover piece 5 is joined at the top of the opening end of the bagbody 3, the bag body 3 will not subject to a large expansion tensionafter the quilt is placed inside the bag. Thus, the opening 6 will notbecome difficult to close after a bulky quilt is placed inside, and itis now much easier and more convenient to seal the opening 6.Furthermore, the opening of the bag body can be configured according tothe size of the quilt. The vacuum bag can also be used in combinationwith a box 9, such as a non-woven fabric box so as to protect the vacuumbag to prolong its service life.

The above embodiments are disclosed for a better understanding of thepresent invention and are not intended as limitations to the presentinvention. Those with ordinary skill in the art can make variations ormodifications on the basis of the technical solution of the describedabove. For instance, the bag body of the present invention may alsocomprise a front bag piece, a back bag piece and strip-like side bagpieces, or a front bag piece, a back bag piece, a strip-like bottom bagpiece and strip-like side bag pieces, furthermore, it may also be formedby sealing an end of a seamless tube. The connection of the edges of thebag pieces is not limited to heat sealing process, and other forms ofconnecting process, such as bonding or a physical method may also beused.

1.-8. (canceled)
 9. A vacuum packing bag, comprising a front bag piece,with a top edge, a bottom edge and two side edges which each comprise anupper portion; a back bag piece, with a top edge, a bottom edge and twoside edges which each comprise an upper portion; and a cover piece atleast one re-openable edge and a plurality of connection edges; whereinsaid plurality of connection edges of said cover piece are joined, in asealed manner, with said upper portion of said side edges of said frontbag piece, said top edge of said back piece, and said upper portion ofsaid side edges of said back bag piece, and wherein said re-openableedge of said cover piece and said top edge of said front bag piecedefine an opening which can be sealed and reopened.
 10. The vacuumpacking bag of claim 9, further comprising a ziplock seal on saidopening defined by said re-openable edge of said cover piece and saidtop edge of said front bag piece.
 11. The vacuum packing bag of claim 9,further comprising a vacuum valve.
 12. The vacuum packing bag of claim9, which is suitable for being placed in a box.
 13. The vacuum packingbag of claim 9, wherein said front bag piece are back bag piece are madeof a material which an airtight material.
 14. The vacuum packing bag ofclaim 13, wherein said airtight material is a plastic.
 15. The vacuumpacking bag of claim 9, wherein said bottom edge of said front bag pieceis joined directly with said bottom edge of said back bag piece so thatsaid vacuum packing back has a pointed bottom.
 16. The vacuum packingbag of claim 9, further comprising a connection piece between saidbottom edges of said front bag piece and of said back bag piece so thatsaid vacuum packing bag has a flat bottom.
 17. The vacuum packing bag ofclaim 16, wherein said side edge of said front bag piece and said sideedge of said back bag piece are joined in a seamless manner to form atube like seamless structure.